含水层下综采工作面缩小防护煤柱开采可行性分析

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1、安徽建筑工业学院硕士学位论文ContentsAbstract………………………………………………………………………………IIllustrationslist………………………………………………………………………VITablelist……………………………………………………………………………VIChapter1Introduction………………………………………………………………1Chapter2Statusandhydrogeologicalcharacteristicsofmining……………………6Chap

2、ter3Studyonthefourthaquiferengineeringgeologicalcharacteristicsandwater-hearingcapability………………………………………………………………14Chapter410coalstratadamageevolutionbynumericalsimulationanalysis………32Chapter5Coalpillarsasaqualityandcontainwater-barrierpropertyinvestigation………

3、……………………………………………………………………55Chapter6Shallow1010facewaterfracturezonesheightandguideasetofcoalpillarsasareasonable…………………………………………………………………………60Chapter7Themainconclusions………………………………………………………63reference………………………………………………………………………………65postscriptorcompliment……………

4、…………………………………………………68resumeofauthor………………………………………………………………………69V安徽建筑工业学院硕士学位论文插图清单图2-1界沟煤矿交通位置图...........................................................................................6图2-2井田构造纲要图.............................................................

5、......................................9，图2-3井田A-A构造纲要图.........................................................................................9图3-1基岩古地形分布图.............................................................................................14图3-2三隔-四含

6、钻孔对比图...................................................................................16图3-3四含厚度分布图.................................................................................................21图3-4四含与基岩面的相关性..............................................

7、.......................................22图3-5钻孔岩芯取样图.................................................................................................23图3-6四含沉积物偏光显微镜照片.............................................................................25图4-1标准六面体的四面体离

8、散.................................................................................33图4-2四面体单元.......................................................................................